Updated March 2026 · Independent Analysis
GrammarlyvsNotion AI
Notion AI starts at $10/mo, 17% cheaper than Grammarly's $12/mo. Grammarly is rated higher at 4.7/5 vs Notion AI's 4.6/5.
Grammarlyvs Notion AI
★ 4.7/5+0.1 vs Notion AI
Only in Grammarly
- ✦ Grammar checking
- ✦ Plagiarism detection
- ✦ Tone suggestions
✓ Free planFrom $12/mo(pricier)30M+ users · est. 2009
Try Grammarly Free →
Notion AIvs Grammarly
★ 4.6/5-0.1 vs Grammarly
Only in Notion AI
- ✦ AI writing assistant
- ✦ Document summarization
- ✦ Action items extraction
From $10/mo(cheaper)4M+ users · est. 2023
Try Notion AI Free →Ratings Breakdown
Grammarly
4.7/5 avg
G2 Score4.7/5
Capterra Score4.7/5
G2 Rating4.7/5
Notion AI
4.6/5 avg
G2 Score4.6/5
Capterra Score4.5/5
G2 Rating4.6/5
Quick Stats
Feature Comparison
Grammarly uniquely offers Grammar checking, Plagiarism detection, Tone suggestions. Notion AI uniquely offers AI writing assistant, Document summarization, Action items extraction. Both share 0 features.
Feature
Grammarly
Notion AI
Grammar checking
✓
✗
Plagiarism detection
✓
✗
Tone suggestions
✓
✗
Style improvements
✓
✗
Browser extension
✓
✗
MS Office plugin
✓
✗
Mobile app
✓
✗
Team style guide
✓
✗
AI writing assistant
✗
✓
Document summarization
✗
✓
Action items extraction
✗
✓
Translation
✗
✓
Tone adjustment
✗
✓
Brainstorming
✗
✓
Q&A on docs
✗
✓
Auto-fill tables
✗
✓
Meeting notes
✗
✓
Custom prompts
✗
✓
Inline editing
✗
✓
Workspace search
✗
✓
Total Features
8
12
Quick Verdict
Independent analysis based on features, pricing, and user ratings
Choose Grammarly if you need:
- ✓ Grammar checking
- ✓ Plagiarism detection
- ✓ Tone suggestions
- ✓ Style improvements
- ✓ Browser extension
Choose Notion AI if you need:
- ✓ AI writing assistant
- ✓ Document summarization
- ✓ Action items extraction
- ✓ Translation
- ✓ Tone adjustment
Pricing Comparison
Notion AI starts at $10/mo, 17% cheaper than Grammarly's $12/mo.
Grammarly Plans
Free tier available
Free
Free- • Basic grammar
- • Spelling
- • Punctuation
PremiumBest Value
$12/month- • Style suggestions
- • Tone detection
- • Plagiarism checker
- • Full rewrites
Business
$15/month- • Team features
- • Style guide
- • Analytics
- • Priority support
Notion AI Plans
Paid plans only
Add-onBest Value
$10/mo- • Unlimited AI usage
- • All Notion plans
- • Full feature access
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